We all have one or more USB devices at home. Charging them on the go does not have to be hard. You certainly don’t want to carry bulky battery extenders everywhere you go. The Bushnell PowerSync Battery Bar is a compact solution that lets you charge your e-readers, GPS, and smartphones on the go. It has dual USB outputs and dual 2200 mAh batteries inside. You can charge it from a USB power source in 6 hours.
The PowerSync is compact and tough. It lets you store energy to use at a later time. It has an on-board battery level indicator too. Just bring your portable gadgets, and you are set.